There’s really not too much design thought going into calculators these days. Probably because their use is on the decline. But for those who still need one, this Draw it Yourself Calculator can be whatever you want. It starts off totally blank, you can fill in the numbers (stencil included) if you …

Tape measures are one of the most necessary tools and the most dangerous. The speed at which the metal “tape” recoils back into the housing always manages to pinch a few fingers, if the sharp edge didn’t already get you. There’s a better way; it’s called hiring a contractor. But there’s also the …

Water is awesome. It’s a refreshing beverage, a hangover cure, cleanser, and now it can power your calculators. The Water Powered Calculator has 3 water powered batteries. Each battery has a pair of electrodes made of a special alloy that produces electricity through a chemical reaction. The water will last you 2-3 ...

It looks like a video game controller. It has all the buttons of a video game controller. But this X-Cool Calculator doesn’t control any video games- unless you’re idea of a game is multiplying out 5 digit numbers with two decimal places. Worst game ever. I think the name X-Cool should be ...